ACV Appliance Repair Service
Specialist repairs using genuine ACV spare parts


Heating
Gas Safe registered engineers for ACV boiler, gas boiler wall mounted, electric boiler wall mounted, cylinder floor standing tank and hot water heater. Fault diagnosis, part replacement and annual servicing across Lancashire.
No hot water or heating?
ACV heating breakdowns repaired fast by Gas Safe engineers. Available seven days a week across Lancashire.


Heating
Professional ACV electric boiler wall mounted and cylinder floor standing tank repair service in Blackpool. Certified technicians with genuine spare parts and a written warranty.
No hot water or heating?
ACV heating breakdowns repaired fast by Gas Safe engineers. Available seven days a week across Lancashire.

Heating
Professional ACV hot water heater repair service in Blackpool. Certified technicians with genuine spare parts and a written warranty.
No hot water or heating?
ACV heating breakdowns repaired fast by Gas Safe engineers. Available seven days a week across Lancashire.

Renewable Energy
MCS-accredited installation and repair for ACV solar panel. Heat pump diagnostics, refrigerant handling and efficiency optimisation.
Heat pump underperforming?
Specialist ACV renewable energy engineers. MCS-accredited service across Lancashire.
Why ACV Appliances Need Specialist Repair
ACV appliances incorporate advanced proprietary systems that require certified engineers with brand-specific training to diagnose and repair correctly.
ACV appliances use integrated electronic diagnostics. Our engineers connect directly to ACV control boards using brand-specific tools to read fault codes and pinpoint issues accurately.
Every repair uses genuine ACV spare parts sourced directly from authorised distributors. Original components ensure compatibility, performance and longevity — backed by a manufacturer warranty.
ACV appliances must meet strict UK safety regulations. Our certified engineers follow ACV service procedures and test every repair to BS EN standards before sign-off.
Many ACV appliances feature Wi-Fi connectivity and smart home integration. Our engineers can diagnose firmware issues, reset connectivity modules and restore remote control functionality.
Common ACV Error Codes
What does the error E 14 mean on an ACV HeatMaster?
Error E 14 on an ACV HeatMaster indicates the gas pressure switch or low-water pressure switch has opened. Check the system pressure gauge and repressurise if below 1 bar. Contact a Gas Safe registered engineer to inspect the pressure switches and gas supply.
What does the error E 01 mean on an ACV boiler?
Error E 01 on an ACV boiler indicates failed ignition after 5 attempts. Check that other gas appliances work, ensure the gas meter valve is open, and check for a frozen condensate pipe. Reset the boiler and contact a Gas Safe registered engineer if the error recurs.
What does the error E 86 mean on an ACV boiler?
Error E 86 on an ACV boiler indicates a pump failure. The boiler has detected that the circulation pump is not working correctly. Contact a Gas Safe registered engineer to inspect and potentially replace the pump.
What does the error E 0 mean on an ACV Challenger?
Error E 0 on an ACV Challenger indicates a sensor fault after the self-check routine. Contact a Gas Safe registered engineer to test and replace the S1 and/or S2 temperature sensors.
What does the error E 99 mean on an ACV boiler?
Error E 99 on an ACV boiler indicates a communication failure between the display and the control module. Turn the boiler off and on. Contact a Gas Safe registered engineer if the error persists, as the control board may need inspection.
Frequently Asked Questions
What information must be provided with ACV products?
Products under 70kW or with less than 500 litres storage must be supplied with a product label, stating the energy performance on a standardised scale. Appliances must include an information sheet detailing energy values. Larger units comply with Ecodesign but need not display labels.
How do ACV cylinders protect against Legionella?
ACV Tank-in-Tank cylinders provide Legionella protection by maintaining hot water at a uniform temperature of at least 60°C. The large heat exchange surface, completely immersed in primary water, ensures even temperature distribution throughout the cylinder, preventing the bacterial growth that occurs below 45°C.
Do ACV cylinders have a backup immersion heater?
Yes, ACV fast recovery cylinders come with a 3kW immersion heater as standard. This provides backup heating capability and can boost water temperature when needed, making the cylinders compatible with renewable heating systems that may have variable output.
How do I get rid of scale if it has built up?
Book a Gas Safe engineer inspection. Regular boiler servicing prevents limescale problems and enables professional removal if necessary.
What warranty does ACV offer on their cylinders?
ACV offers a 25-year guarantee on the corrosion-resistant stainless steel cylinder and a 5-year parts guarantee on boilers and cylinders. To qualify for the full 5-year parts guarantee, the product must be registered with ACV within 30 days of installation completion.
Areas We Cover in Lancashire
ACV appliance repair service across the ten largest towns in the county
Other Groupe Atlantic Brands
Appliances from other brands in the same corporate group are also repaired
Book a ACV Repair
Specialist ACV engineers. No-obligation quote.